275032: test and fix: itd of no-arg constructor should overwrite a generated default constructor

org.aspectj.ajdt.core/src/org/aspectj/ajdt/internal/compiler/lookup/EclipseAnnotationConvertor.java

@@ -15,6 +15,7 @@ import org.aspectj.apache.bcel.classfile.annotation.ElementValueGen;
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.Annotation;
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.ArrayInitializer;
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.Expression;
+import org.aspectj.org.eclipse.jdt.internal.compiler.ast.MarkerAnnotation;
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.MemberValuePair;
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.NormalAnnotation;
 import org.aspectj.org.eclipse.jdt.internal.compiler.ast.QualifiedNameReference;
@@ -100,6 +101,8 @@ public class EclipseAnnotationConvertor {
 				annotationAJ.addNameValuePair(new AnnotationNameValuePair(new String(
 						singleMemberAnnotation.memberValuePairs()[0].name), av));
 			}
+		} else if (annotation instanceof MarkerAnnotation) {
+			MarkerAnnotation markerAnnotation = (MarkerAnnotation) annotation;
 		} else {
 			// this is a marker annotation (no member value pairs)
 			throw new MissingImplementationException(

org.aspectj.ajdt.core/src/org/aspectj/ajdt/internal/compiler/lookup/EclipseResolvedMember.java

@@ -26,6 +26,7 @@ import org.aspectj.org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
 import org.aspectj.org.eclipse.jdt.internal.compiler.impl.IntConstant;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.Binding;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ClassScope;
+import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.ExtraCompilerModifiers;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.FieldBinding;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.MethodBinding;
 import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.SourceTypeBinding;
@@ -52,6 +53,7 @@ public class EclipseResolvedMember extends ResolvedMemberImpl {
 	private ResolvedType[] cachedAnnotationTypes;
 	private EclipseFactory eclipseFactory;
 
+	
 	public EclipseResolvedMember(MethodBinding binding, MemberKind memberKind, ResolvedType realDeclaringType, int modifiers,
 			UnresolvedType rettype, String name, UnresolvedType[] paramtypes, UnresolvedType[] extypes,
 			EclipseFactory eclipseFactory) {
@@ -235,4 +237,19 @@ public class EclipseResolvedMember extends ResolvedMemberImpl {
 		return null;
 	}
 
+    /**
+     * Return true if this is the default constructor.  The default constructor
+     * is the one generated if there isn't one in the source.  Eclipse
+     * helpfully uses a bit to indicate the default constructor.
+     *
+     * @return true if this is the default constructor. 
+     */
+	public boolean isDefaultConstructor() {
+		if (!(realBinding instanceof MethodBinding)) {
+			return false;
+		}
+		MethodBinding mb = (MethodBinding) realBinding;
+		return mb.isConstructor() && ((mb.modifiers & ExtraCompilerModifiers.AccIsDefaultConstructor) != 0);
+	}
+
 }